package com.atguigu.gulimall.product.config;

import com.alibaba.fastjson.support.spring.GenericFastJsonRedisSerializer;
import org.springframework.boot.autoconfigure.cache.CacheProperties;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.StringRedisSerializer;

@EnableConfigurationProperties(CacheProperties.class)
@Configuration
@EnableCaching
public class MyCacheConfig {
    /**
     * 指定redis的序列化方式
     * 如果指定了自己的配置，则application.properties中配置就不生效了
     * 如果需要application.properties中的配置生效，需要进行读取重新配置
     *  @ConfigurationProperties(prefix = "spring.cache")
     * @return
     */

    @Bean
    public RedisCacheConfiguration redisCacheConfiguration(CacheProperties cacheProperties){
        RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig();
//        config=config.entryTtl();
        config=config.serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(new StringRedisSerializer()));
        config=config.serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(new GenericFastJsonRedisSerializer()));

        //让配置文件中的所有配置生效
        CacheProperties.Redis redisProperties = cacheProperties.getRedis();
        if (redisProperties.getTimeToLive()!=null){
            config=config.entryTtl(redisProperties.getTimeToLive());
        }

        if (redisProperties.getKeyPrefix()!=null){
            config=config.prefixKeysWith(redisProperties.getKeyPrefix());
        }

        if (!redisProperties.isCacheNullValues()){
            config=config.disableCachingNullValues();
        }

        if (!redisProperties.isUseKeyPrefix()){
            config=config.disableKeyPrefix();
        }

        return config;
    }
}
